A stereogram made of two pictures, one red and one blue, taken from offset positions. When the pictures are viewed through glasses with one lens of each color, the picture appears to be three-dimensional.
Anaglyph
See also
StereogramExplore with Wolfram|Alpha
References
Steinhaus, H. Mathematical Snapshots, 3rd ed. New York: Dover, p. 166, 1999.Referenced on Wolfram|Alpha
AnaglyphCite this as:
Weisstein, Eric W. "Anaglyph." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Anaglyph.html